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1A. E. BARTHEL. eoMBINATIoN LUBRICATOR.

(No Model.)

Patented Sept. 2, 1884;.

Wmfssnsx UNITED STATES PATENT OFFICE..

A. 'EDWARD BARTHEL, orinnw YORK, N. Y.

coMmNATroN-LUBRICA-ron.

Applicalion lcd January 14, 1884'.

(No model.)

5 in Combination-Lubricators, of which the fol-V lowing is a full, true, and exact description, reference being 'had to the accompanying drawings.

Heretofore lubricators for automatically supplying to journals or other mechanism a suitable solid or semi-solid lubricant have been of two classes, in one of which the grease or lubricant was at all times fed by the action of gravity by means of a follower or piston continually pressing upon it. In the other class such follower or piston was, not free to v fall by gravity. but was fed down upon the lubricant by turninga screw or similar mechanism atintervals.

advisable upon the same bearingA to use 'one method, while at other times it is advisable to use the other method, of supplying such lubricant.

My invention consists in providing a simple and etlicacious device for feeding the lubricant, which, by a simple motion or by a ready alteration of some mechanism, can be changed from an automatic lubricator in which the grease is continually supplied by gravity to a screw-lubricator in which the grease is forced outward by the action of a screw. By this mechanism, therefore, the engineer can either continually supply the lubricant, or need supply it only at intervals, as he maygieem proper` By my device likewise, as will be hereinafter seen, the apparatus can be much more readily resupplied with the grease or Vlubricant* than is true of the screw-lubricator, because the piston can be readily and quickly'raised, instead of gradually screwing it up to its upper position. The apparatus which I here show 4is only one o f many forms in whichl my invention can be embodied, and I describe it merely as the-best form known to me, but not as indieating the only method in which the invention may be carried out. f

In my drawings similarletters refer tosimiv lar parts.

Figure l represents a view, 'generally in section, of my entire apparatus, being in part a Both of these mechanisms-- have their advantages, and it is sometimes.

v section through Fig. 2 on the line a: av. Figs.

2 and 3 represent sectional views beneath the' stemfcontrolling mechanism, showingthelocking device in two positions, the section being taken on the line y y, Fig. 1. sents the details lof this locking mechanism.

A` represents, generally, the casing or cup of the lubricator, which may be connected to the journal or bearing by the screw-thread B, and this cup may be partly or wholly of' glass, as desired, or may be of metall` I prefer, however, to have certain glass partitions in it, by means of which the amount of lubricant may beobserved.. Within this cylindrical cup is fitted the piston C, which should preferably be. packed withasuit-able leather or equivalent Fig. 4 reprepacking. By the depression of this piston the lubricant is forced out through the discharge- -epeningin theconnection iB.' This piston is provided with a stem, D, by means of which it may be raised and lowered, which stem'is providedwithascrew-thread, as shown. The

stem is preferably made` hollow, and with a cover, T, by means of which shot E may be placed within it, thereby altering its gravity.

This-construction is, however, a matter of detail.

The cover of my cylindrical lubricatorcup is ,shown at L; This cover has a lip adapted to t closely on the outside of the cup, and

` maybe screwed or cemented there, it' desired.

It is also provided with a tubular or cylindri cal extension, R, extending above it and serv- This cover Lis likewisepro= pins 0 o, hereinthe supporting-channel J. Through thccenter of this channel J `is cut the oblong slot Ky allowing the passage of the'lockingmuts F F.` These nuts constitute 'a dividednnt, and are provided with plates V V, adapted to slide and be supported in the channel J. The halfnuts F F form part of -these plates V V. The;l

plates V V are likewise provided with the eccentric slots G G. When the plate H is screwed in position beneath the cover Lyit will be'seen that the slotsGGcomeunderthe This plate N is preferably lprovided with a milled edge, whereby it may be readily manipulated, and it is likewise provided with pins O O, which engage with the eccentricv slots G G. The plate N may be rotated by hand, and within the are permitted by the slots G G, and such rotation will close or open thesplit nut F F, depending upon the position of the pins O O in the eccentric 'slots G as crew-thread, X, on its outer surface, upon which the nut S may be screwed. When the parts are putin position, the nut S is screwed down upon the plate N, thereby preventing its withdrawal, but permitting its rotation. The stem D having been arranged within the Acentral openings of the parts N, L, V V, and H, these parts are put together, as described. y It will now be seen that when the plate N is rotated to the left the split nut F F will be opened and the apparatus will be in the position shown in Fig. 3. In this position the stem D will slide vertically, being fast upon the `piston C below, and lbeing supported in the guide R above. If, however, thc plate N be turned to the right, the apparatus will be in the condition shown in Figs. 1 and 2, when the' split nut will engage with the screwthread on the stem D.l In this position the piston can only be raised or lowered by turning the stem' D by the handle W, while the reverse motion of the plate N will again free` the stem and piston and allow the same to fall by gravity, or be raised by the hand of the engineer.

It will be observed that the principle of my invention is in the use of a mechanism which will at times clasp the stem connected with the piston and at other times releasethe same, and that the mechanism which I preferably employ for this purpose isa split nut. It will be obvious that this nut` may be made in three or more sections, instead of in two sections. Under certain circumstances only one side of it need be employed; but l preferv to have a screw-thread upon both sides of the central stem. It will be plain, likewise. that the cup might be of different shapes. I' regard the tubular guide in the cover as also of i importance, as it prevents the jamming ofthe thread, which might otherwise occur.

In filling this lubricator, which may be done either from the upper-'or lower end, although I prefer to fill it from the lower end, the piston may be readily drawn to the 'upper end of the cup by freeing the nut, and then held in G. The tubular extension R is provided with` be again released, if desired. By this means I prevent the loss of time, which would otherwise occur by raising the piston, by turning the screw until it had reached the upper endl of its traverse. lVhat I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, in alubricator consisting of a casing or cup having av dischargeopening, of a piston or follower, and vmeclianism, substantially as described, whereby the said piston may be permitted to feed the lu- 7 5v bricant by gravity, or may be screwed down upon the lubricant at the will of the operator, substantially as described.

2.l The combination, in a lubricator, of -a piston or follower for forcing out the lubri- So cant, of a stem connected therewith, andiof mechanism, substantially as described, whereby a screw-thread upon the said stem may be clasped, or whereby said stem may befrecd and allowed to fall by gravity at the will of the operator, substantially as described. 3. The combination, in a lubrieator, of a. piston or follower, a threaded stem connected therewith, a split nut, and mechanism, substantially as described, whereby said nut may 9o be caused to engage with the thread of the stem or withdrawn therefrom at the will of the operator, substantially as described.

4. The split nut and a guiding-tube combned in a lubricator, with the screw-Stem, case, and piston,to prevent the jamming of .the thread, substantially as described.

5. The combination, in a cylindrical lubrica-v tor, of a piston or follower, a-.stem connected therewith, and mechanism, as described, whereby the said pston'may be fed forward by` a screw-thread, or may be l freely moved with its supportat the will of the operator, substantially as described.

6. The combination of the lubricator-cup A, ro 5 piston C, the threaded stem D, split nut F F, provided with eccentric slots G G, cover L, and the controlling-pins O O, substantial] y as described. i

7. The combination, in a lubricator, of the piston C, the threaded stem D, the divided nut F F, controlled by eccentric slots G G, the cover L, supporting said divided nut, and the plate N, provided with'pins O O, for moving said divided nut, substantially as de scribed,A i

8. The combination, in a -lubricator, of a cup, A, a follower, C, a. threaded stem, D, a

I'Io

split nut, F F, and mechanism, as described,

for-opening and closing the same, and the t-ubular guide R, substantially as described.

A. EDWARD BARTHEL.

fitnessesz u GEO. H. Evans,

XVM. A. PoLLocK. 

